226 lines
7.8 KiB
JavaScript
226 lines
7.8 KiB
JavaScript
#!/usr/bin/env node
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/**
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* 数据库结构检查脚本
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* 检查数据库表结构和数据完整性
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*/
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const mysql = require('mysql2/promise');
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const config = require('../config/env');
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async function checkDatabaseStructure() {
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let connection;
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try {
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console.log('🔍 开始检查数据库结构...');
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// 创建数据库连接
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const dbConfig = {
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host: config.mysql.host,
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port: config.mysql.port,
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user: config.mysql.user,
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password: config.mysql.password,
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database: config.mysql.database,
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charset: config.mysql.charset,
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timezone: config.mysql.timezone
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};
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connection = await mysql.createConnection(dbConfig);
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console.log('✅ 数据库连接成功');
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console.log(`📊 数据库: ${dbConfig.database}`);
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console.log('='.repeat(60));
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// 测试基本查询
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const [testRows] = await connection.execute('SELECT 1 + 1 AS result');
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console.log(`✅ 基本查询测试: ${testRows[0].result}`);
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// 检查数据库版本和字符集
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const [versionRows] = await connection.execute('SELECT VERSION() as version');
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console.log(`📊 MySQL版本: ${versionRows[0].version}`);
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// 获取所有表
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console.log('\n📋 检查数据库表结构:');
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const [tables] = await connection.execute(`
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SELECT TABLE_NAME, TABLE_ROWS, DATA_LENGTH, INDEX_LENGTH, TABLE_COMMENT
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FROM information_schema.TABLES
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WHERE TABLE_SCHEMA = ?
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ORDER BY TABLE_NAME
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`, [dbConfig.database]);
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if (tables.length === 0) {
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console.log('⚠️ 数据库中没有找到任何表');
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console.log('💡 建议运行数据库结构创建脚本');
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return { success: false, message: '数据库为空' };
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}
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console.log(`📊 找到 ${tables.length} 个表:`);
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let totalRows = 0;
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for (const table of tables) {
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const rowCount = table.TABLE_ROWS || 0;
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totalRows += rowCount;
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const dataSize = (table.DATA_LENGTH / 1024).toFixed(2);
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const indexSize = (table.INDEX_LENGTH / 1024).toFixed(2);
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console.log(` 📄 ${table.TABLE_NAME.padEnd(25)} | ${String(rowCount).padStart(6)} 行 | ${dataSize.padStart(8)} KB | ${table.TABLE_COMMENT || '无注释'}`);
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}
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console.log(`\n📊 总记录数: ${totalRows}`);
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// 检查核心表的详细结构
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console.log('\n🔍 检查核心表结构:');
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const coreTables = ['admins', 'users', 'merchants', 'animals', 'orders', 'payments'];
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for (const tableName of coreTables) {
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const tableExists = tables.find(t => t.TABLE_NAME === tableName);
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if (tableExists) {
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console.log(`\n📋 表: ${tableName}`);
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// 获取表结构
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const [columns] = await connection.execute(`
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SELECT COLUMN_NAME, DATA_TYPE, IS_NULLABLE, COLUMN_DEFAULT, COLUMN_COMMENT
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FROM information_schema.COLUMNS
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WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?
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ORDER BY ORDINAL_POSITION
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`, [dbConfig.database, tableName]);
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console.log(' 字段结构:');
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for (const col of columns.slice(0, 10)) { // 只显示前10个字段
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const nullable = col.IS_NULLABLE === 'YES' ? '可空' : '非空';
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const defaultVal = col.COLUMN_DEFAULT ? `默认:${col.COLUMN_DEFAULT}` : '';
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console.log(` ${col.COLUMN_NAME.padEnd(20)} | ${col.DATA_TYPE.padEnd(15)} | ${nullable.padEnd(4)} | ${col.COLUMN_COMMENT || '无注释'}`);
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}
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if (columns.length > 10) {
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console.log(` ... 还有 ${columns.length - 10} 个字段`);
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}
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// 检查索引
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const [indexes] = await connection.execute(`
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SELECT INDEX_NAME, COLUMN_NAME, NON_UNIQUE
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FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = ? AND TABLE_NAME = ?
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ORDER BY INDEX_NAME, SEQ_IN_INDEX
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`, [dbConfig.database, tableName]);
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if (indexes.length > 0) {
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console.log(' 索引:');
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const indexGroups = {};
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indexes.forEach(idx => {
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if (!indexGroups[idx.INDEX_NAME]) {
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indexGroups[idx.INDEX_NAME] = [];
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}
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indexGroups[idx.INDEX_NAME].push(idx.COLUMN_NAME);
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});
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Object.entries(indexGroups).forEach(([indexName, columns]) => {
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const type = indexName === 'PRIMARY' ? '主键' : '索引';
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console.log(` ${type}: ${indexName} (${columns.join(', ')})`);
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});
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}
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// 检查数据样例
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try {
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const [sampleData] = await connection.execute(`SELECT * FROM ${tableName} LIMIT 3`);
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if (sampleData.length > 0) {
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console.log(` 📊 数据样例: ${sampleData.length} 条记录`);
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} else {
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console.log(' 📊 数据样例: 表为空');
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}
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} catch (error) {
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console.log(` ❌ 无法获取数据样例: ${error.message}`);
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}
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} else {
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console.log(`❌ 核心表不存在: ${tableName}`);
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}
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}
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// 检查外键约束
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console.log('\n🔗 检查外键约束:');
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const [foreignKeys] = await connection.execute(`
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SELECT
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TABLE_NAME,
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COLUMN_NAME,
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REFERENCED_TABLE_NAME,
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REFERENCED_COLUMN_NAME,
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CONSTRAINT_NAME
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FROM information_schema.KEY_COLUMN_USAGE
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WHERE TABLE_SCHEMA = ? AND REFERENCED_TABLE_NAME IS NOT NULL
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ORDER BY TABLE_NAME
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`, [dbConfig.database]);
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if (foreignKeys.length > 0) {
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console.log(`📊 找到 ${foreignKeys.length} 个外键约束:`);
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foreignKeys.forEach(fk => {
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console.log(` ${fk.TABLE_NAME}.${fk.COLUMN_NAME} -> ${fk.REFERENCED_TABLE_NAME}.${fk.REFERENCED_COLUMN_NAME}`);
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});
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} else {
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console.log('⚠️ 没有找到外键约束');
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}
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// 数据完整性检查
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console.log('\n🔍 数据完整性检查:');
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// 检查管理员数据
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if (tables.find(t => t.TABLE_NAME === 'admins')) {
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const [adminCount] = await connection.execute('SELECT COUNT(*) as count FROM admins');
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console.log(`👨💼 管理员数量: ${adminCount[0].count}`);
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if (adminCount[0].count > 0) {
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const [admins] = await connection.execute('SELECT username, role, status FROM admins LIMIT 5');
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admins.forEach(admin => {
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console.log(` - ${admin.username} (${admin.role}, 状态: ${admin.status})`);
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});
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}
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}
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// 检查用户数据
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if (tables.find(t => t.TABLE_NAME === 'users')) {
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const [userCount] = await connection.execute('SELECT COUNT(*) as count FROM users');
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console.log(`👥 用户数量: ${userCount[0].count}`);
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if (userCount[0].count > 0) {
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const [userStats] = await connection.execute(`
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SELECT user_type, COUNT(*) as count
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FROM users
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GROUP BY user_type
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`);
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userStats.forEach(stat => {
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console.log(` - ${stat.user_type}: ${stat.count} 人`);
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});
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}
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}
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console.log('\n🎉 数据库结构检查完成！');
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return {
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success: true,
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tableCount: tables.length,
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totalRows: totalRows,
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tables: tables.map(t => t.TABLE_NAME)
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};
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} catch (error) {
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console.error('❌ 数据库结构检查失败:', error.message);
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console.error('🔍 错误代码:', error.code);
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return { success: false, error: error.message };
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} finally {
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if (connection) {
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await connection.end();
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console.log('🔒 数据库连接已关闭');
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}
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}
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}
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// 如果是直接运行此文件，则执行检查
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if (require.main === module) {
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checkDatabaseStructure()
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.then((result) => {
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process.exit(result.success ? 0 : 1);
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})
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.catch(() => process.exit(1));
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}
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module.exports = { checkDatabaseStructure }; |